Technical Service Bulletins
|Publication Date: APRIL 27, 2001|
Some vehicles built before 3/1/2001 may exhibit a high speed driveline vibration that may cause possible transmission and/or driveshaft damage. This may result in the 4R70W transmission extension housing bushing to be spun out of the extension housing or may cause the extension housing seal to leak.
Verify the extension housing bushing is spun out of position or damaged or the extension housing seal is leaking. If normal diagnostics cannot pinpoint the cause, reprogram the Powertrain Control Module (PCM). The updated calibration will reduce the maximum top speed of the vehicle to reduce the possibility of vibration. Refer to the following Service Procedure for details.
If the driveshaft or extension housing bushing is damaged, replace or repair per the following procedure and 2001 Workshop Manual Procedures. Reprogram the PCM with an updated calibration. Refer to the following PCM Calibration Information Chart.
- Raise the vehicle on a hoist and inspect the transmission extension housing bushing and seal for damage.
- If the extension housing bushing or seal is damaged, remove the driveshaft and transmission extension housing per 2001 Workshop Manual, Section 307-01B. Install a new Extension Housing Assembly (F3LY-7A039-A), and a new Extension Housing Gasket (F6AZ-7086-A). Verify transmission fluid level.
- If the driveshaft or yoke is damaged, replace as necessary. Use the part list for the correct driveshaft application. During driveshaft installation, follow the procedure outlined in the following note.
NOTE: THE INDEX PAINT MARKS ON THE OUTPUT SHAFT, DRIVESHAFT, AND REAR AXLE MUST BE ALIGNED. THE INDEXED BALANCE MARK ON THE OUTPUT SHAFT AND THE INDEXED BALANCE MARK ON THE NEW DRIVESHAFT YOKE MUST BE ALIGNED (FIGURE 1). ALIGNMENT OF THE INDEX MARKS ON THE REAR DRIVESHAFT TUBE AND THE REAR AXLE FLANGE MUST BE PERFORMED (FIGURE 2). PCM CALIBRATION INFORMATION Application Old Part Number (-12A650-) Tear Tag New Part Number (-12A650-) Old Calibration New Calibration NGS/WDS Qualifier 4.2L, 4R70W with 3.31, 3.55 Axle, 50-State F-150 1L3F-DD XAZ4 1L3Z-DE 1F512C0510 1F512C0511 WDS B12.11 Release 4.6L, 4R70W, 4X2, Federal F-150 1L3F-AVC WIZ3 1L3Z-AVD 1F516M0A10 1F516M0A11 WDS B12.11 Release 4.6L, 4R70W, 4X2, Calif. F-150 1L3F-KC EME3 1L3Z-KD 1F516D0A10 1F516D0A11 WDS B12.11 Release 5.4L, 4R70W, Base/Harley, Federal F-150 1L3F-ASB SVB2 1L3Z-ASC 1F514F0A05 1F514F0A10 WDS B12.11 Release 5.4L, 4R70W, Base/Harley, Calif. F-150 1L3F-ARB CML2 1L3Z-ARC 1F514E0B05 1F514E0B10 WDS B12.11 Release
|PART NUMBER||PART NAME|
|F85Z-4602-FA||Driveshaft (4.2L/4.6L, 4X2, 4R70W, 139″ WB)|
|XL3Z-4602-BA||Driveshaft (5.4L, 4X2, 4R70W, 139″ WB)|
|F3LY-7A039-A||Transmission Extension Housing|
|F6AZ-7086-A||Gasket – Extension Housing|
Obtain an Authorized Modifications Decal (FPS 8262 – obtainable through DOES II, 25/pkg) and list the date, dealer number, and summary of modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.
|THE FOLLOWING MODIFICATIONS HAVE BEEN MADE:|
|Reprogrammed Powertrain Control Module (PCM) Per TSB 01-9-1|
|THESE MODIFICATIONS HAVE BEEN APPROVED, AS APPROPRIATE, BY EPA AND CARB.|
FPS 8262 9/78 FORD MOTOR COMPANY PRINTED IN U.S.A.
OTHER APPLICABLE ARTICLES:
504000, 510000, 597997, 703000, 703300
Figure 1 – Article 01-9-1
Figure 2 – Article 01-9-1
Copyright © 2001 Ford Motor Company